FR 9614 then FR 340 at Dublin
Rome → Dublin → London Luton
Timetable, Dublin time
19:25FR 9614 from Rome at the gate
15:00FR 340 to London Luton leaves the gate
19 h 35 apart on the timetable, overnight
FR 340 leaves 19 h 35 after FR 9614 arrives on the timetable: more than half a day, so not a connection we count.